[asterisk-dev] BYE to 408 Request Timeout - is this correct?

[Chris Maciejewski]

Hi,

I am running Asterisk SVN-branch-1.6.1-r178608.

Noticed * is generating BYE request to "408 Request Timeout" response.
I don't think this is correct, as 4xx,5xx and 6xx responses to INVITE should
be only acknowledged with ACK (RFC3261 - 13.2.2.3).

Proxy                                          Asterisk
|<-----------------------(sdp) INVITE F8<|
|>F9 100 Giving a try ------------------>|
|>F13 408 Request Timeout -------------->|
|<------------------------------ ACK F14<|
|<------------------------------ BYE F15<|   <= THIS SHOULD NOT BE HERE
|>F18 404 Not here --------------------->|

Shall I open a bug report?
Or I am reading RFC3261 - 13.2.2.3 incorrectly?

Best regards,
Chris